Welcome to the world of bioluminescence: the generation of light by living things. 

From flickering fireflies in Northeastern backyards to bizarre fishes illuminating the deep ocean’s perpetual dark, the tree of life is spangled with organisms that blink, glow, flash, and glitter. How do organisms use bioluminescence, and how do scientists study it? Rare in land animals, the ability to produce light is much more widespread in marine life. A new generation of custom-designed equipment is enabling scientists to observe and collect creatures rarely seen alive before. In the deep ocean off the Solomon Islands, for example, Museum biologists found animals communicating with light. Many more intriguing discoveries await as we explore Earth’s final frontier, the deep sea.

Blog Post First Biofluorescent Fish Found in the Arctic In icy waters off Greenland, Museum researchers found a species of snailfish that glows in shades of red and green. March 18, 2021 Video Exploring Greenland's Icy Waters Scientists search for biofluorescent fish in an unlikely place. Video SciCafe: Into the Abyss - New Frontiers in Deep Sea Exploration Scientists discuss deep-sea research. Video Submarine Dives Capture Bioluminescence Sea animals are observed signaling at light speed. Blog Post Flashlight Fish Use Their Glow to School in Dark Waters Museum researchers make the first observation of fish using bioluminescent flashes to school in dark waters. August 15, 2019 Blog Post The Glowing Hawksbill Sea Turtle Find out what Museum researchers are learning about this endangered marine species. January 9, 2019 Research Bioluminescence Evolved at Least 29 Times in Marine Fishes Alone New research shows that bioluminescence—a phenomenon in which organisms generate visible light through a chemical reaction—has evolved... June 8, 2016 Blog Post Glowing Shark Patterns Get Brighter in Deep Water A team led by Museum researchers has found that glowing sharks can see one another's colors, and that the patterns they produce become... April 26, 2016 Video They Glow! Most of the deep sea is very dark, with little or no sunlight. But that doesn't mean marine animals are in the dark! Learn how these... Hands-on Make Your Own Creatures of Light Ever wonder why some organisms flash, blink, or glow? Discover how by making your own land and ocean creatures that generate light. Blog Post Bioluminescent Fish Flashing Patterns Might Facilitate Mating Deep-sea fishes that use bioluminescence for communication are diversifying into different species more quickly. March 3, 2014 Blog Post Researchers Reveal Covert World of Fish Biofluorescence A team of researchers led by Museum scientists has identified more than 180 species that glow. January 8, 2014 Blog Post Museum Researchers Discover Glowing Sea Turtles A Museum researcher observed biofluorescence—the emission of light by plants and animals as a different color than it was absorbed—for... January 11, 2016 Article Descent Into Light On the inaugural Explore21 Expedition, Museum biologists discover a glowing menagerie in the waters off the Solomon Islands. Game Talking to Fireflies Have you ever wondered why and how fireflies flash? OLogy Card 344 bioluminescence A firefly's light seems rare and magical. Yet there are many living things that blink, glow, flash, and glitter. The deep-sea anglerfish... Blog Post “Sea Pickles” May Glow Because of Newly Discovered Gene Finding may indicate first bioluminescent gene from a chordate, the group that includes all vertebrates. October 20, 2020 Blog Post Fish Full of Antifreeze Protein Found Off Greenland New research on a biofluorescent snailfish reports the highest expression of antifreeze proteins ever observed. August 16, 2022